How do you think they should go about rescuing Samuel Holt? They can't just repeat what they did with Matt, cos that'd be lame. Or do you think they'll just kill him? From a writer's standpoint, that would be a plausible way to go. Cos these specific writers REALLY, REALLY like tearing out our hearts, crushing them, shredding them with cheese graters, and chucking them on the funeral pyre.
If you've seen Avatar: The Last Airbender, you must remember the Boiling Rock two-parter (and how SPECTACULAR it was). Maybe they could do something similar, but not an exact replica or it would be boring.